More than 257 km of new lines were added to the public transmission network in 2019 (including overhead lines that were undergrounded).
RTE also replaced more than 376 km of overhead and underground lines on its network.
More than 257 km of new lines were added to the public transmission network in 2019 (including overhead lines that were undergrounded).
RTE also replaced more than 376 km of overhead and underground lines on its network.
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As part of its public service contract with the French state, signed in May 2017, RTE committed to not increase, and even to decrease, the total length of overhead lines on its network (see chart, total overhead lines).
Since 2017, 95.5% of the new 90 kV and 63 kV lines brought into service have been underground. RTE is also working to “take down” existing overhead lines. As technologies evolve, RTE is burying high-voltage lines more and more often.
Underground lines current represent:
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Underground
A total of 45 km of new 225 kV underground lines were brought into service in 2019. The main completions were:
Overhead
RTE replaced conductors on nearly 205 km of overhead lines operated at voltages of 400 kV and 225 kV in 2019, primarily as part of:
The replacement of the 225 kV Carrières – Roye – Valescourt line in the Oise.
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Underground
The length of underground lines operated at voltages of 63 kV and 90 kV increased in 2019, as 175 km of new lines were added. RTE notably brought into service:
Overhead
Conductors were replaced on certain 63 kV and 90 kV overhead lines representing 159 km in all. Examples included:
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